Atacama Atabites SMD-Z 7.0HD Inert Filler

Item code: Atacama SMD-Z Atabite

4.8 14 reviews ✓ Verified
Atacama Atabites SMD-Z 7HD is a high-density zinc-coated steel inert filler for mass loading speaker stands. Sold in 7kg tubs, with a density of 4.18kg per litre. Compatible with most speaker stand brands.
£34.99
£29.16
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Qty:

SPEAKER CABLES:

A quantity of 2 means you will receive a pair of speaker cables e.g. for your front left and front right speakers. By entering a quantity of 1, you will get a cable for a single speaker e.g. centre speaker and this option also enables you to vary the length (and termination) of your cable for each speaker.

OTHER CABLES:

A quantity of 1 means you will receive a single cable in the case of aerial, satellite, subwoofer, digital coaxial & optical cables and a pair of cables in the case of 2 rca to 2 rca analogue audio cables.

NON-CABLE PRODUCTS:

A quantity of 1 means you will receive 1 of the specified products.

£29.16 ex. VAT
Available — built to order, dispatches in 24 hours
Delivery: Royal Mail Tracked 24  ·  DPD Next Day from £8.95  ·  DPD Saturday from £12.95
Order before 4pm (Mon–Fri) for same-day dispatch
Our promise: 30-day returns · Free burn-in · Built in our UK workshop · 24 Months warranty · Expert support on every order

Atacama Atabites SMD-Z 7HD Inert Filler

 

Mass loading a speaker stand changes what it does acoustically. An unfilled hollow steel tube has its own resonant frequency and will colour the sound reaching the speaker above it. Fill that tube with a dense, inert material and the resonant frequency drops sharply, the stored energy dissipates rather than re-radiating, and the stand becomes a genuinely neutral platform. This is the principle behind Atabites: a high-density zinc-coated steel filler developed by Atacama specifically for use in their own stands, and compatible with most other tubular speaker stands on the market.

Atabites are supplied in 7kg tubs. At a density of 4.18kg per litre, a single tub represents considerably more mass than an equivalent volume of sand, which makes them a more efficient filler for stands with limited internal volume. The 2-4mm micro-disc format packs densely and evenly without bridging, and the zinc coating protects against oxidation over the long term. The result is a filler that performs consistently and does not degrade in service.

How much you use is a matter of experimentation. Atacama's guidance is that filling to between half and two-thirds capacity gives the best balance of bass extension, detail retrieval, and soundstage width. Overfilling tends to produce a duller, more compressed sound. The capacity table below shows the maximum fill weight for each Atacama stand model; working up from half that figure is a practical starting point for most systems.

 

Here is what Atacama says about Atabites SMD-Z 7HD

Traditional speaker stands can introduce unwanted vibrations that muddle your audio. Atabites acts as a sonic sponge, absorbing these vibrations and creating a more neutral platform for your speakers. The result is clearer, more accurate sound with reduced coloration. Atabites' dense composition effectively dampens vibrations, minimising resonance within the speaker stands. The size of Atabites micro-discs (2-4mm) ensures consistent sonic performance across the entire filler. The innovative zinc coating protects Atabites from oxidation and degradation, ensuring long-lasting performance.

 

Features

  • High-density zinc-coated steel: 4.18kg per litre, substantially denser than sand at 1.53kg per litre, giving more mass in less volume
  • 2-4mm micro-disc particle size: Consistent particle size ensures even packing and uniform sonic performance throughout the stand
  • Zinc coating: Protects against oxidation and long-term degradation; some discs may have a single-sided satin black finish for batch identification, which does not affect performance
  • Sold by weight: Supplied in 7kg tubs due to the density of the material; some settling during transport is normal
  • Universal compatibility: Suitable for most tubular speaker stands, not only Atacama and Apollo models
  • Not suitable for Aurora 6 speaker stands

 

How to fill your stands

Speaker stands can introduce unwanted resonances that colour your sound. Atabites acts as a sonic tuner, absorbing vibrations and creating a more neutral platform. The ideal fill amount depends on speaker type, cable configuration, room acoustics, and personal preference. As a starting point, filling to between half and two-thirds capacity generally produces the best balance of bass depth, detail, and soundstage. Filling beyond two-thirds can lead to a dull, lifeless presentation with softened mids. Always check with your stand manufacturer for suitability before filling non-Atacama stands.

 

Maximum Atabites fill weight by stand model

All figures are approximate weights per pair of stands. Some settling of contents will occur.

Stand Model Essential (per pair) HiFi Audio (per pair) Pro Studio (per pair)
NeXXus 200 5.32kg 9.37kg 13.43kg
NeXXus 300 8.18kg 14.43kg 20.69kg
NeXXus 400 11.05kg 19.49kg 27.95kg
NeXXus 500 13.92kg 24.56kg 35.21kg
NeXXus 600 16.80kg 29.65kg 42.50kg
NeXXus 700 19.67kg 34.70kg 49.73kg
NeXXus 1000 28.28kg 49.89kg 71.51kg

 

The following stands use a single capacity figure regardless of specification. Moseco/Ensign CC series: use the corresponding Nexus figure for the matching leg height (single stand). All figures below are per pair unless noted.

Stand Model Max Fill (per pair)
Nexus 5 / Moseco 5 / Apollo Cyclone 5 6.80kg
Nexus 6 / Moseco 6 / Duo 6 / Apollo Cyclone 6 8.40kg
Nexus 7 / Moseco 7 / Duo 7 / Apollo Cyclone 7 9.84kg
Nexus 10 / Moseco 10 14.14kg
SLX 200 10.64kg
Audition / SLX 300 16.36kg
Audition / SLX 400 22.10kg
Audition / SLX 500 27.84kg
Audition / SLX 600 36.60kg
Audition / SLX 700 39.34kg
SLX 1000 / SL series 56.56kg
HMS1.1 / Moseco XL 500mm 30.80kg
HMS1.1 / Moseco XL 600mm 44.53kg
HMS1.1 700mm 58.20kg
HMS2.1 / HMS2X-600 85.00kg

 

Specification

  • Material: Zinc-coated steel micro-discs
  • Particle size: 2-4mm
  • Density: 4.18kg per litre
  • Tub size: 7kg (approximately 1.6L capacity per 1.8L tub)
  • Compatible with most tubular speaker stands
  • Not suitable for: Aurora 6 speaker stands
  • Made in the UK

 

About Atacama Audio Made in the UK

Atacama Audio, formerly known as Sambell Engineering Ltd, has a rich history dating back to its establishment in 1969 as a sub-contract engineering company specialising in aerospace work. With a strong reputation as a trusted supplier to prestigious companies like Rolls Royce and British Aerospace, Atacama Audio transitioned into manufacturing its own commercial products. In 1987, Atacama Audio developed an innovative HiFi speaker stand, which garnered positive feedback from local retailers. Despite being temporarily put on hold in 1988 due to overwhelming manufacturing demands, the interest in the speaker stands remained. The success continued with various award-winning products, including the Atacama Eris Eco 5, Evoque Eco 60-40, Moseco Speaker Stand, and Apollo Storm 6 modular HiFi rack. As a company committed to innovation, Atacama Audio constantly explores new concepts in HiFi furniture design. Their latest range, the NeXXus series of speaker stands, offers adaptability, upgradability, and a wide range of customisation options. Atacama Audio and Apollo HiFi furniture strives to exceed customer expectations, providing exceptional HiFi speaker stands and AV rack support designs. The company looks forward to introducing even more innovative designs in the future.

About Atacama Audio

British maker of hi-fi racks and equipment supports, built from bamboo composite, solid oak and steel.

Atacama is based in Croft, Leicestershire, and its products are made in Great Britain. It builds hi-fi racks and equipment supports from bamboo composite, solid oak, other hardwoods and steel. The ranges include Evoque Eco, Apollo and Elite Eco, in sizes from compact to wide, so there is a rack for a small stack or a full system.

Read more about Atacama Show less

Isolation is built into the rack

The Evoque Eco range uses ASIST damping gaskets as standard, along with a mechanical grounding system and modular isolation components. The SE2 versions add vectored resonance channels and contoured shelving. All of this is aimed at controlling vibration at the shelf, where it affects your sources.

Bamboo and oak, in several finishes

Bamboo panels are used in the Evoque range, and solid oak in the Apollo Storm and Apollo Podium ranges. Finishes include natural oak, dark oak, natural bamboo and dark bamboo, plus a Premium Black Edition, so a rack can be matched to the room it sits in.

Modular racks, with vinyl storage on some

The Apollo and Evoque racks are modular, so you can put together a rack that suits the equipment you own and add to it later. Apollo Storm and Apollo Podium offer vinyl storage, and it is an option on the Elite Reference Series.

Why we stock Atacama

Atacama have taken What Hi-Fi?'s Best Hi-Fi Rack award in multiple years, which is not something that happens by accident in a category where most products look much the same. Support matters more than people expect: a good rack does for your electronics roughly what isolation feet do for a turntable.

Shop all Atacama Audio →

Specification

  • Material: Zinc-coated steel micro-discs
  • Particle size: 2-4mm
  • Density: 4.18kg per litre
  • Tub size: 7kg (approximately 1.6L capacity per 1.8L tub)
  • Compatible with most tubular speaker stands
  • Not suitable for: Aurora 6 speaker stands
  • Made in the UK

We use Royal Mail 1st Class services for our Standard Delivery.

Orders received before 4.30 pm Monday to Friday are usually dispatched the same day by FIRST CLASS post (unless premium postal or timed courier services are selected), subject to stock availability. This does not apply to custom-length cables and speaker cables as these require a longer timescale to terminate. This also excludes all cables selected for the burn-in service. Please note, we do not process orders on national holidays in the UK. Over 98% of our orders are delivered the next working day including Saturdays.

 

Standard delivery is usually within 2 working days, although 98% of all orders are delivered the next working day including Saturdays. In extreme cases, such as delivery to the Highlands and Islands, this may take 3 days.

 

All items are fully insured and come with an invoice from Future Shop. We use the Royal Mail for delivery of small packages and DPD Local or DHL for items that weigh over 2KG. Items over 2KG are fully insured and will usually be delivered within 48 hours of placing your order subject to stock availability. For international orders, we use FedEx or DHL services where customers have selected this option.

 

 

Please note, special orders for non-standard cable lengths may be subject to longer deliver time-scales. This may vary from manufacturer to manufacturer.

 

We offer 'Free delivery on orders over £99' subject to the following terms & conditions:

  • Applies only to orders with £99 or more of items (including VAT at the UK rate), at Future Shop
  • Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or DHL next working day services which deliver from 9.00am to 6pm within mainland UK (excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or DHL).
  • Applies only to deliveries to addresses within mainland UK and Northern Ireland addresses. Applies only to orders that are to be delivered to a single Mainland UK delivery address.
  • You will not be eligible for free delivery on your order if any items are cancelled or returned for a refund, bringing the total order amount below £99. Where items are returned, the refund due will be the cost of the item less any postage costs.
  • We reserve the right to change or discontinue 'Free delivery on orders over £99 promotion at any time.
  • FREE DELIVERY FOR ORDERS OVER £99 OFFER DOES NOT APPLY TO TRADE CUSTOMERS.

 

UK Postal & Delivery Charges - FIRST CLASS

Free UK delivery on all orders over £99*

Weight Price (FIRST CLASS UK POSTAGE)
0g - 1000g £3.95
1000g - 1400g £4.95
1400g - 1800g £5.95
1800g - 2000g £6.95
2000g - 3000g £8.95


* Free Delivery on orders over £99 utilises Royal Mail First Class postal service for items weighing under 2KG. For items weighing over 2KG, we use DPD or DHL next working day services which deliver from 9.00am to 6pm within mainland UK.

Free Delivery for orders over £99 excludes Royal Mail Special Delivery Services and timed next day delivery services by DPD or DHL.

 

Special Delivery UK - Guaranteed Next Working Day

We have 99.9% of the UK covered With Royal Mail Next Day Special Delivery. We guarantee delivery to most UK addresses by 1pm the next working day. This includes Northern Ireland, Jersey and Guernsey. Some places take longer to deliver to but we still guarantee delivery within three working days by 5.30 PM.

 

Please note, Royal Mail Special Delivery for next working day may not be possible where non-standard cable lengths are ordered. If this is the case, the item will be shipped via The Royal Mail Special Delivery service as soon as the cable is custom made.

 

For orders weighing over 2KG, we reserve the right to ship items using Next Day Pre-Noon Courier Services where Royal Mail Special Delivery option has been selected.

 

Channel Islands & Northern Ireland

We accept orders from all Channel Islands including Alderney, Jersey, Guernsey and Sark. Unless you select a premium service, Items weighing under 2KG are delivered using our standard UK delivery option above. For items weighing over 2KG, a surcharge may be applied for all deliveries to the Channel Islands as well as Northern Ireland.

 

European Countries

Deliveries to EU member states are not subject to 20% VAT after December 31st 2020 and therefore the 20% VAT on items is automatically deducted when you log-in, register or proceed to place an order.

 

The customer will be liable for the VAT at the local VAT rate, duty on the import and the brokerage service fee if applicable. This may need to be paid in advance to your local Customs & Excise office or the delivery company before your order can be delivered.

 

We offer the following shipping services:

  • Royal Mail First Class International Airmail Services - Items are usually delivered within 3 to 5 working days
  • Royal Mail Standard International Mail Services - Items are usually delivered within 7-10 working days
  • DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
  • Federal Express International Priority - Items are usually delivered within 24 to 48 hours. FedEx orders must be received by 3.00pm for next day service to most destinations in Europe
  • Federal Express International Economy - Item are usually delivered within 48 to 72 hours

We reserve the right to change your shipping method without notification if you select a method that we cannot use for your shipment (for instance, we cannot ship via postal services for items over 2 Kg to International destinations). If we need to change your shipping method, we will choose the least expensive shipping method for your order.

 

Worldwide - Excluding UK & Europe

Deliveries outside of the UK are not subject to 20% VAT and so the 20% tax on items is automatically deducted when you log-in, register or proceed to place an order.

 

If applicable, the customer will be liable for the taxes at the local tax rate, duty on the import and the brokerage service fee. This may need to be paid in advance to your local Customs & Excise office or the delivery company before your order can be delivered.

 

We offer the following shipping services:

  • Royal Mail First Class International Airmail Services - Items are usually delivered within 7 to 10 working days
  • Royal Mail Standard International Mail Services - Items are usually delivered within 15 working days
  • DHL Express International - Items are usually delivered within 24 to 48 hours. DHL orders must be received by 3:30pm for next day service to most destinations in Europe
  • Federal Express International Priority - Items are usually delivered within 48 hours. FedEx orders must be received by 3.00pm in order to ship items the same day, subject to stock availability
  • Where the actual weight of the package significantly exceeds the shipping cost charged on orders, we may write to you for an additional shipping charge. For larger orders, items may be shipped in multiple packets at our discretion

We reserve the right to change your shipping method without notification if you select a method that we cannot use for your shipment (for instance, we cannot ship via postal services for items over 2 Kg to International destinations). If we need to change your shipping method, we will choose the least expensive shipping method for your order.

Write Your Own Review

Atacama Atabites SMD-Z 7.0HD Inert Filler

We are interested in your opinion of this product. let us and other customers know how you feel by filling in the comment field below. Your review will appear in this section within 3 working days.

Please do:

  • - Write 50-300 words for the product
  • - Comment on the products value and effectiveness
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4.8
14 reviews
5★
11 (79%)
4★
3 (21%)
3★
0 (0%)
2★
0 (0%)
1★
0 (0%)
AI Review Summary — Generated from 14 Reviews

Atacama Atabites fillers are consistently praised for their effectiveness as high-density stand fillers that improve audio quality by tightening bass, enhancing clarity, and reducing resonance. Users particularly appreciate the convenience and cleanliness compared to alternatives like sand or cat litter, as well as fast delivery and good packaging. Most reviews confirm the product performs as advertised for speaker stands, especially KEF models. However, customers note that multiple tubs are often required for larger stands, making the product expensive at approximately £35 per tub—a concern that deters budget-conscious buyers. A key recurring complaint is the high cost relative to fill capacity, particularly for larger stands or budget-level equipment.

Michael
Top filler 24 August 2026
These Atacama Atabites fillers are brilliant; they're heavy, dense fillers that weigh down the stands and ground them firmly, so there is no rattling (assuming the stands are level, of course!). The sound is noticeably clean and taut.

I used 2 buckets for my KEF stands (1 is not enough!)

The weight of this filler is surprising; it's definitely a decent-quality, recommended product without a doubt.
Bruce Barnett ✓ Verified Purchase
Better than sand for weight loading speakers 28 May 2026
We have just got KEF R3 meta speakers and stands for my daughter's new flat, and although the stands are really good, I wanted to add some weight and lower the centre of gravity (just in case her large Ragdoll cats jumped up on the
Daniel ✓ Verified Purchase
Very good product. Works well. 24 March 2025
Very good product. It works well.

reat product. And great service.
Gregg Harrison ✓ Verified Purchase
Just what i wanted with fast delivery 15 March 2025
I needed heavy fill for a speaker stand. This came in a handy tub, and I now have a heavy stand for my centre channel.
Oba ✓ Verified Purchase
So WORTH It! 5 August 2024
It's definitely worth its weight in gold. It's much better than using sand to fill my speaker stand.

No fuss, no mess!

So WORTH It!
m luckett ✓ Verified Purchase
Seems to do the trick 9 April 2023
If you disregard the high price, they do seem to work as a high-density filler. They are easy to use and well-packaged.

Frequently Asked Questions

Atacama Audio speaker stands are engineered to enhance your Hi-Fi system’s performance by reducing unwanted vibrations and improving overall sound clarity. Many models, such as the NeXXus and Moseco Series, feature height adjustability, mass-loading options, and advanced acoustic damping to optimise speaker positioning. This combination delivers tighter bass, cleaner mids, and a more immersive listening experience.
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Bamboo composite is not only strong and durable but also offers exceptional vibration-damping properties ideal for high-performance audio furniture. Atacama’s award-winning Evoque Eco and Eris Eco ranges use sustainable bamboo to improve sound isolation while offering an eco-friendly alternative to traditional wood or metal shelves. The natural finish also gives each rack a stylish, contemporary look.
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Yes. By isolating your Hi-Fi components and minimising resonance, Atacama Audio racks and speaker stands help your system produce cleaner, more detailed sound. This is especially noticeable with speakers, turntables, and delicate audio equipment where vibration control can make a significant difference to tonal accuracy and dynamics.
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Absolutely. All Atacama Audio speaker stands and AV racks are supplied with clear, step-by-step instructions and all necessary fittings. Most customers find the assembly process straightforward, and many models require only basic tools, making setup quick and hassle-free.
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Yes. Atacama Audio speaker stands, AV racks, and Hi-Fi furniture are compatible with most audio and home cinema components, regardless of brand. Adjustable shelves and modular designs ensure a perfect fit for your specific system layout, whether you’re upgrading existing equipment or building a new setup.
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Bamboo shelves should be cleaned regularly with a soft, damp cloth and dried immediately to maintain their appearance. Avoid using harsh cleaning chemicals, abrasives, or excessive moisture, as these can damage the finish. With proper care, Atacama bamboo Hi-Fi racks and stands will look and perform at their best for years to come.
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Write Your Own Review

Atacama Atabites SMD-Z 7.0HD Inert Filler

We are interested in your opinion of this product. let us and other customers know how you feel by filling in the comment field below. Your review will appear in this section within 3 working days.

Please do:

  • - Write 50-300 words for the product
  • - Comment on the products value and effectiveness
  • - Tell us if you like the product, but most importantly explain why you like or dislike it
  • - Mention related products and how this one rates by comparison
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